I think the hypocrisy is the biggest issue here.
Also, when Mario was a poor loser, there were TONS of anti-Mario threads. But the thing was that Mario was just a poor loser -- he did put excellent effort into the tasks. He didn't give up after 20 minutes of SITTING IN A CHAIR.

He also apologized later.
John James is putting no effort, having a tantrum, AND being a poor loser (blaming BB, blaming Rachel, taking zero responsibility). I don't think we're going to see an apologies, either.